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SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC - QO Series, Plug-In Square D Miniature Circuit Breakers
SQUARE DQO Series, Plug-In Square D Miniature Circuit Breakers

SQUARE D Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC

The SQUARE D QO120CAFI is a 20 A, single-phase, plug-in miniature circuit breaker from the QO Series, designed for use with QO Load Centers and NQ Panelboards. It has an AC voltage rating of 120/240V AC and a maximum…

SKU 3G-OTH-21516

Brand
SQUARE D
Item
Miniature Circuit Breaker: 20 A, 120/240V AC, Single Phase, 10kA at 120/240V AC
Category
QO Series, Plug-In Square D Miniature Circuit Breakers
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Technical Specifications

SQUARE D
Manufacturer Part Number
QO120CAFI
Type
Single Phase, 10kA at 120/240V AC
AC
120/240V
Amps
20 A
Phase
Single
Poles
1
For Use With
QO Load Centers and NQ Panelboards
Max. AIR Rating
10kA at 120/240V AC
AC Voltage Rating
120/240V AC
View Full Spec Sheet

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SQUARE D Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SQUARE D QO120CAFI is a 20 A, single-phase, plug-in miniature circuit breaker from the QO Series, designed for use with QO Load Centers and NQ Panelboards. It has an AC voltage rating of 120/240V AC and a maximum AIR rating of 10kA at 120/240V AC.

Frequently Asked Questions

What is the SQUARE D QO120CAFI miniature circuit breaker used for?

The SQUARE D QO120CAFI is a 20 A, single-phase, plug-in miniature circuit breaker used for overcurrent protection in residential and commercial electrical panels. It is designed specifically for QO Load Centers and NQ Panelboards, providing reliable branch-circuit protection at 120/240V AC with a 10kA interrupting rating.

What are the specifications of the SQUARE D QO120CAFI?

The SQUARE D QO120CAFI is a 1-pole, 20 A miniature circuit breaker rated for 120/240V AC single-phase systems. It has a maximum AIR rating of 10kA at 120/240V AC and is designed for plug-in installation in QO Load Centers and NQ Panelboards. The brand is SQUARE D, part of the QO Series.

Where to buy the SQUARE D QO120CAFI worldwide?

You can source the SQUARE D QO120CAFI through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine SQUARE D components for commercial and industrial applications.

How to install the SQUARE D QO120CAFI circuit breaker?

To install the SQUARE D QO120CAFI, ensure the panel is de-energized. Align the breaker's plug-in tabs with the bus bar in a QO Load Center or NQ Panelboard, then press firmly until it snaps into place. Connect the load wire to the terminal and torque to the manufacturer's specification. Always follow local electrical codes.

Used in

Common applications for SQUARE D
Commercial building electrical panels — Square D QO series plug-in circuit breakers for branch circuit protection
Industrial motor control centers — Square D QOB series bolt-on breakers in NQOD panelboards
Heating equipment installations — Square D QOU series unit-mount breakers for overcurrent protection
Outdoor electrical distribution — Square D L-Frame enclosures housing LAL/LHL breakers for 400 A service
Indoor facility power distribution — Square D Q-Frame enclosures with QBL/QDL breakers for 225 A circuits
Retrofit and replacement in existing Square D load centers — QO series breakers for 120/240V AC systems

SQUARE D Products

3G Electric supplies SQUARE D qo series, plug-in square d miniature circuit breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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